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1. 发明授权

US5052099A Method of fabricating a magnetic head by sputter etching 失效
标题翻译：通过溅射蚀刻制造磁头的方法
公开(公告)号：US5052099A
公开(公告)日：1991-10-01
申请号：US606202
申请日：1990-10-31
申请人： Akira Taguchi , Shigetoshi Morita , Shunichi Taka , Hirohide Yamada , Yoshiaki Takada , Shinji Furuichi , Masahiro Ao
发明人： Akira Taguchi , Shigetoshi Morita , Shunichi Taka , Hirohide Yamada , Yoshiaki Takada , Shinji Furuichi , Masahiro Ao
IPC分类号： G11B5/187 , G11B5/10 , G11B5/60 , G11B21/21
CPC分类号： G11B5/6005 , G11B5/10 , G11B5/102 , Y10T29/49041
摘要： A floating type magnetic head is made of a polycrystalline material. A surface to be opposed to a magnetic recording medium is undulated with lands and grooves having a height difference of 50 to 200 .ANG. on an average and a repetition pitch of 5 to 20 microns on an average. The portions, in which the heights of the lands and the grooves abruptly change, extend along the boundaries of the polycrystals. The head surface opposed to the magnetic recording medium is sputter-etched to have the predetermined surface roughness.
摘要翻译：浮动式磁头由多晶材料制成。与磁记录介质相对的表面平均地具有50至200安培的平均高度差和5至20微米的重复间距的平台和凹槽。其中土地和槽的高度突然变化的部分沿着多晶体的边界延伸。与磁记录介质相对的头表面被溅射蚀刻以具有预定的表面粗糙度。

2. 发明授权

US5010429A Floating magnetic head having improved static friction coefficient 失效
标题翻译：具有改善的静摩擦系数的浮动磁头
公开(公告)号：US5010429A
公开(公告)日：1991-04-23
申请号：US360124
申请日：1989-06-01
申请人： Akira Taguchi , Shigetoshi Morita , Shunichi Taka , Hirohide Yamada , Yoshiaki Takada , Shinji Furuichi , Masahiro Ao
发明人： Akira Taguchi , Shigetoshi Morita , Shunichi Taka , Hirohide Yamada , Yoshiaki Takada , Shinji Furuichi , Masahiro Ao
IPC分类号： G11B5/10 , G11B5/187 , G11B5/60
CPC分类号： G11B5/1871 , G11B5/10 , G11B5/6005
摘要： A floating type magnetic head is made of a polycrystalline material. A surface to be opposed to a magnetic recording medium is undulated with lands and grooves having a height different of 50 to 200 .ANG. on an average and a repetition pitch of 5 to 20 microns on an average. The portions, in which the heights of the lands and the grooves abruptly change, extend along the boundaries of the polycrystals. The head surface opposed to the magnetic recording medium is sputter-etched to have the predetermined surface roughness.
摘要翻译：浮动式磁头由多晶材料制成。与磁记录介质相对的表面平均地具有平均50至200安培高度的平台和重复间距为5至20微米的平台和凹槽。其中土地和槽的高度突然变化的部分沿着多晶体的边界延伸。与磁记录介质相对的头表面被溅射蚀刻以具有预定的表面粗糙度。

3. 发明授权

US4642719A Magnetic head assembly 失效
标题翻译：磁头组件
公开(公告)号：US4642719A
公开(公告)日：1987-02-10
申请号：US467287
申请日：1983-02-17
申请人： Shigetoshi Morita , Masaaki Ashizawa , Hirohide Yamada
发明人： Shigetoshi Morita , Masaaki Ashizawa , Hirohide Yamada
IPC分类号： G11B5/105 , G11B5/265 , G11B5/22 , G11B5/16
CPC分类号： G11B5/2651 , G11B5/105
摘要： A magnetic head assembly has, at least, a recording/reproducing magnetic head made of an Mn-Zn ferrite, a first reinforcer made of a non-magnetic ceramic material and bonded by a glass to the recording/reproducing magnetic head in parallel with the gap formed in the recording/reproducing magnetic head, erasing magnetic heads attached to both sides of the first reinforcer so as to limit the recording width of the recording/reproducing magnetic head, and second reinforcers made of a non-magnetic ceramic material and bonded in parallel to gaps in the erasing magnetic heads, the second reinforcers being positioned at both sides of said recording/reproducing magnetic head. The area Af defined by the thermal expansion coefficient curve of the Mn-Zn ferrite in the temperature range between the normal room temperature and the softening point of the bonding glass and the area Ac defined by the thermal expansion coefficient curve of the first reinforcer in the same temperature range satisfy the following condition:-3.8.times.10.sup.-4 .ltoreq.Af-Ac.ltoreq.1.8.times.10.sup.-4.
摘要翻译：磁头组件至少具有由Mn-Zn铁氧体制成的记录/再现磁头，由非磁性陶瓷材料制成的第一加强件，并通过玻璃与记录/再现磁头平行地粘合在记录/再现磁头中形成的间隙，擦除附接到第一加强件两侧的磁头以限制记录/再现磁头的记录宽度，以及由非磁性陶瓷材料制成的第二加强件，平行于擦除磁头中的间隙，第二加强件位于所述记录/再现磁头的两侧。在正常室温和粘合玻璃的软化点之间的温度范围内的Mn-Zn铁氧体的热膨胀系数曲线所规定的面积Af和由第一增强材料的热膨胀系数曲线限定的面积Ac 相同的温度范围满足以下条件：-3.8x10-4

4. 发明授权

US4441132A Magnetic head device 失效
标题翻译：磁头装置
公开(公告)号：US4441132A
公开(公告)日：1984-04-03
申请号：US371580
申请日：1982-04-26
申请人： Shigetoshi Morita , Hirohide Yamada
发明人： Shigetoshi Morita , Hirohide Yamada
IPC分类号： G11B5/10 , G11B5/133 , G11B5/265 , G11B5/16 , G11B5/22
CPC分类号： G11B5/1335 , G11B5/10 , G11B5/2651
摘要： A magnetic head device comprising a recording/playback magnetic head and erasing magnetic head, each of which consisting of cores made from a ferrite of Mn-Zn system and a reinforcement plate made from a non-magnetic ceramic material and bonded to respective cores; and sliders made from a non-magnetic ceramic material and united with the magnetic heads. The non-magnetic ceramic material for the sliders has a thermal expansion coefficient which is at least 5.times.10.sup.-7 /.degree.C. greater than that of the non-magnetic ceramic material for the reinforcement plate.
摘要翻译：一种磁头装置，包括记录/重放磁头和擦除磁头，每个磁头包括由Mn-Zn系铁氧体制成的芯和由非磁性陶瓷材料制成并加固到各个芯的加强板; 以及由非磁性陶瓷材料制成并与磁头结合的滑块。用于滑块的非磁性陶瓷材料具有比用于加强板的非磁性陶瓷材料高的至少5×10 -7 /℃的热膨胀系数。

5. 发明授权

US4460697A Process for producing non-oxide powders 失效
标题翻译：生产非氧化物粉末的方法
公开(公告)号：US4460697A
公开(公告)日：1984-07-17
申请号：US380780
申请日：1982-05-21
申请人： Hisao Hara , Hirohide Yamada
发明人： Hisao Hara , Hirohide Yamada
IPC分类号： C01B21/06 , C01B21/076 , C01B21/082 , C01B31/30 , C01B31/34 , C01B35/04 , C04B35/56 , C04B35/58 , C22C1/05
CPC分类号： C04B35/5626 , C01B21/06 , C01B21/0765 , C01B21/0828 , C01B31/30 , C01B31/301 , C01B31/34 , C01B35/04 , C04B35/58014 , C04B35/58021 , C04B35/58071 , C22C1/056 , C01P2002/70 , C01P2004/61 , C01P2004/62 , C01P2006/80
摘要： Non-oxide powders such as carbides, nitrides, carbides/nitrides and borides are obtained by reducing an oxide powder in a reducing atmosphere, and after or concurrently with the reduction, treating the reduced powder in a carbonizing atmosphere, a nitrogenizing atmosphere, a carbonizing and nitrogenizing atmosphere, or a boronizing atmosphere. As the above oxide powder, there is used a brittle material obtained by rapid cooling of a melted oxide. The non-oxide powders obtained are utilized as a hard component of cemented carbides and cermet. These powders are fine particles having a particle size of 1.0 .mu.m or smaller and a high purity.
摘要翻译：通过在还原气氛中还原氧化物粉末得到非氧化物粉末如碳化物，氮化物，碳化物/氮化物和硼化物，并且在还原后或同时还原时，在碳化气氛，氮化气氛，碳化和氮化气氛，或硼化气氛。作为上述氧化物粉末，使用通过快速冷却熔融氧化物而获得的脆性材料。获得的非氧化物粉末用作硬质合金和金属陶瓷的硬组分。这些粉末是粒径为1.0μm以下且纯度高的细颗粒。

6. 发明授权

US5254006A Permanent magnet assembly for false tooth stabilization 失效
标题翻译：用于假牙稳定的永磁组件
公开(公告)号：US5254006A
公开(公告)日：1993-10-19
申请号：US943557
申请日：1992-09-11
申请人： Hirohide Yamada
发明人： Hirohide Yamada
IPC分类号： A61C8/00 , A61C13/235
CPC分类号： A61C13/235
摘要： A permanent magnet assembly for false tooth stabilization which includes a cup-shaped case formed of a corrosion resistant and magnetic material, an axially magnetized permanent magnet stored in the case, and a seal plate formed of a corrosion resistant material and fitted into and fixed to an end opening in the case to hermetically seal the case, the seal plate being composed of a central seal plate portion formed of a magnetic material to face the end face of the permanent magnet and a seal edge portion formed of a non-magnetic material to face in the region of the outer periphery of the permanent magnet. The width dimension of the seal edge portion is in the range of 0.03 to 0.07 mm, and at least the abutting portions of the case and seal plate are welded to each other.
摘要翻译：一种用于假牙固定的永磁体组件，其包括由耐腐蚀和磁性材料形成的杯形壳体，存储在壳体中的轴向磁化永磁体和由耐腐蚀材料形成并固定到在壳体中的端部开口以密封壳体，密封板由由磁性材料形成的面对永磁体的端面的中心密封板部分和由非磁性材料形成的密封边缘部分组成面对永久磁铁外周的区域。密封边缘部分的宽度尺寸在0.03至0.07mm的范围内，并且至少壳体和密封板的邻接部分彼此焊接。

7. 发明授权

US4681813A Ceramic substrate for a thin layer magnetic head 失效
标题翻译：用于薄层磁头的陶瓷基板
公开(公告)号：US4681813A
公开(公告)日：1987-07-21
申请号：US652660
申请日：1984-09-20
申请人： Hirohide Yamada , Masahiko Sakakibara , Yoshiharu Koike
发明人： Hirohide Yamada , Masahiko Sakakibara , Yoshiharu Koike
IPC分类号： C04B35/10 , C04B35/117 , C04B35/488 , G11B5/187 , G11B5/31 , G11B5/60 , H01F10/26 , H01F10/28
CPC分类号： G11B5/6005 , C04B35/117 , C04B35/488 , G11B5/187 , G11B5/3106 , Y10S428/90 , Y10T428/1157
摘要： A thin layer magnetic head comprising a ceramic substrate consisting essentially of 100 parts by weight of a ceramic material and 0.05 to 5 parts by weight of at least one compound from the group consisting of silicon oxide and iron oxide.
摘要翻译：一种薄层磁头，其包括基本上由100重量份的陶瓷材料组成的陶瓷衬底和0.05至5重量份的由氧化硅和氧化铁组成的组中的至少一种化合物。

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